problem with sound device

hi
my querry is..

Quote:

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Ex: i have a mobile... in that am listening the songs... at that time an incoming call is coming..
i want to lift the call with out quitting or without muting the songs player..
at the same time i have listen the music ang voice of the caller...
it is just an example.

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is it possible...?
how?

please help me thank you in advance

Anything is possible. Do you honestly expect an answer that is anything more detailed than this answer, given how completely vague you were?

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Originally Posted by munna_dude

is it possible...?

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YES

Quote:

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how?

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by rewriting the firmware of the phone.

Depends on the “mobile”. I am not sure of the hardware of your “mobile” but a wav file or mp3 can have multiple channels. A standard 8 bit riff.

Code:

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<fmt-ck> ->  fmt( <common-fields> <format-specific-fields> )

<common-fields> ->
        struct
        {
                WORD wFormatTag;        // Format category
                WORD wChannels;          // Number of channels
                DWORDdwSamplesPerSec;    // Sampling rate
                DWORDdwAvgBytesPerSec;  // For buffer estimation
                WORD wBlockAlign;        // Data block size
        }

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Code:

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channels      1        2
            _________ _________
            | left    | right  |
  stereo    |        |        |
            |_________|_________|


                1        2        3
            _________ _________ _________
            | left    | right  | center  |
  3 channel |        |        |        |
            |_________|_________|_________|

                1        2        3        4
            _________ _________ _________ _________
            | front  | front  | rear    | rear    |
  quad      | left    | right  | left    | right  |
            |_________|_________|_________|_________|

                1        2        3        4
            _________ _________ _________ _________
            | left    | center  | right  | surround|
  4 channel |        |        |        |        |
            |_________|_________|_________|_________|

                1        2        3        4        5        6
            _________ _________ _________ _________ _________ _________
            | left    | left    | center  | right  | right  |surround |
  6 channel | center  |        |        | center  |        |        |
            |_________|_________|_________|_________|_________|_________|

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by using different number of channels you can separate the audio. But that requires more speakers.

What do you mean by “lift”? You can deal with each channel as needed.